Spectrex SharpEye 40/40M, Руководство пользователя

Страница: 16 / 90

Multi IR Hydrocarbon and Hydrogen Flame Detector User Guide
16 Principles of Operation
1.3 Features and Benefits
 Detects Hydrocarbons and Hydrogen Flames.
 Detection Range: Up to 215ft/65m for a 1ft
2
/0.1m
2
n-heptane fire.
 Ultra High Immunity to False Alarms: See Table 4 on page 26.
 Advanced Digital Processing of the Dynamic Characteristics of Fire:
Flickering, threshold correlation and ratio.
 Multi IR Channels: Between 2 – 5 microns.
 Field Programmable Sensitivity: 4 ranges to avoid zone crossover.
 Built-In-Test (BIT): Manual and Automatic (see Built-In-Test (BIT) on
page 31).
 Heated Window: Prevents effects of ice, snow, and condensation.
 Electrical Interface:
 Dry contact relays
 Communication network RS-485
 0 – 20mA output
 HART Protocol: Communication protocol (see HART Protocol on page 17).
 Exde: Integral junction box for easy wiring.
 SIL-2: TÜV approved.
 Hazardous Area Certification: ATEX, IECEx, FM, CSA.
 Functionality Approval:
 EN54-10 approved by VdS
 FM approved per FM3260
 Accessories are approved as part of ATEX and IECEx approval.
1.4 Principles of Operation
This section describes the 40/40M principles of operation and includes:
 Fire Detection Principle, page 17
 Heated Optics, page 17
 HART Protocol, page 17
 RS-485 Modbus, page 18
 Product Certification, page 18